html,
body {
    margin: 0;
    padding: 0;
    font-family: "Microsoft YaHei",”宋体”, "Arial Narrow";
}

section,
article,
aside,
div,
p,
h1,
h2,
h3,
h4,
ul,
li,
ol {
    margin: 0;
    padding: 0;
}

ul,
li,
ol {
    list-style: none;
}

a {
    text-decoration: none;
}